Hi, Does anyone have experience repairing one of these? I have two and neither works. The first one lights up, but with random digits on the display. I picked up the second hoping to get some spare parts, but almost all of the boards are marked "BAD", which they appear to be. I downloaded the service manual, but at step 3 (of 103) it says to "insert interconnect-monitor PCB in the isolator slot", which I do not have. Is this thing fixable or should I toss it? Thank you. Steve - N8MYA Medina OH

Hi Steve, I would just unplug all module except the controller. See if the display is normal, then plug the modules back in, one at a time (power-off/on in between, of course!). When the display goes bad again, there's your culprit. Of course, if the display is bad with just the controller, well ... good luck ;-). I have an 8505A myself, with a bad IEEE interface, which also causes the display to go mad. Haven't had the time to repair it yet, but no interface is not such a big deal. Regards, Rob. steve gunsel schreef: > Hi, > > Does anyone have experience repairing one of these? I have two and > neither works. The first one lights up, but with random digits on the > display. I picked up the second hoping to get some spare parts, but > almost all of the boards are marked "BAD", which they appear to be. I > downloaded the service manual, but at step 3 (of 103) it says to > "insert interconnect-monitor PCB in the isolator slot", which I do not > have. Is this thing fixable or should I toss it? > Thank you. > > Steve - N8MYA > Medina OH